防(fang)爆加(jia)熱(re)(re)(re)管(guan)(guan)是(shi)(shi)一種消耗(hao)電(dian)能轉換為熱(re)(re)(re)能,來對需加(jia)熱(re)(re)(re)物料進行加(jia)熱(re)(re)(re)。防(fang)爆加(jia)熱(re)(re)(re)管(guan)(guan)是(shi)(shi)由外(wai)到里外(wai)殼(不繡鋼/碳鋼/銅(tong)(tong)/鈦材等、發熱(re)(re)(re)絲(si)(鎳鉻鉛合金(jin))、填充物(氧化鎂,作(zuo)(zuo)用是(shi)(shi)導熱(re)(re)(re)、絕緣)、外(wai)殼(不繡鋼、碳鋼、鈦材、銅(tong)(tong) 等)、陶瓷封頭(作(zuo)(zuo)用:絕緣)、防(fang)爆盒組(zu)成的(de)(de)。加(jia)熱(re)(re)(re)管(guan)(guan)在(zai)工(gong)作(zuo)(zuo)中(zhong)低溫(wen)流(liu)(liu)體(ti)介質通過管(guan)(guan)道在(zai)壓(ya)力作(zuo)(zuo)用下進入其輸入口(kou),沿著電(dian)加(jia)熱(re)(re)(re)容器內部(bu)特定換熱(re)(re)(re)流(liu)(liu)道,運用空(kong)氣電(dian)熱(re)(re)(re)管(guan)(guan)的(de)(de)流(liu)(liu)體(ti)熱(re)(re)(re)力學原理設計的(de)(de)路徑,帶走空(kong)氣加(jia)熱(re)(re)(re)管(guan)(guan)中(zhong)的(de)(de)電(dian)熱(re)(re)(re)元(yuan)件工(gong)作(zuo)(zuo)中(zhong)所產生的(de)(de)高(gao)溫(wen)熱(re)(re)(re)能量,使空(kong)氣加(jia)熱(re)(re)(re)管(guan)(guan)被加(jia)熱(re)(re)(re)介質溫(wen)度升高(gao),加(jia)熱(re)(re)(re)管(guan)(guan)出口(kou)得到工(gong)藝要求的(de)(de)高(gao)溫(wen)介質。
產品特點(dian)
1.升(sheng)溫時(shi)間在試驗電壓下(xia),元(yuan)件從環境溫度升(sheng)至試驗溫度時(shi)間應(ying)不大于15min
2.額定(ding)(ding)(ding)功(gong)率偏(pian)差(cha)在充(chong)分發熱的條件(jian)下,元(yuan)件(jian)的額定(ding)(ding)(ding)功(gong)率的偏(pian)差(cha)應不超過下列規(gui)定(ding)(ding)(ding)的范圍(wei);對(dui)額定(ding)(ding)(ding)功(gong)率小于等于100W的元(yuan)件(jian)為:士10%。對(dui)額定(ding)(ding)(ding)功(gong)率大于100W的元(yuan)件(jian)為+5%~- 10%或10W,取兩者中的較大值。
3.泄(xie)露電(dian)(dian)流(liu)(liu)冷(leng)態(tai)泄(xie)露電(dian)(dian)流(liu)(liu)以(yi)(yi)及水壓和密封(feng)試驗(yan)后(hou)泄(xie)露電(dian)(dian)流(liu)(liu)應(ying)不超過0.5mA工(gong)作溫度下的熱(re)態(tai)泄(xie)露電(dian)(dian)流(liu)(liu)應(ying)不超過公式(shi)中的計算值,但不超過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)泄(xie)露電(dian)(dian)流(liu)(liu)mA t-發熱(re)長度mm T-工(gong)作溫度C多(duo)個元件串聯到電(dian)(dian)源中時,應(ying)以(yi)(yi)這一(yi)組元件為 整體(ti)進行泄(xie)露電(dian)(dian)流(liu)(liu)試驗(yan)。
4. 絕(jue)(jue)緣電(dian)(dian)阻(zu)出廠檢驗時冷態(tai)(tai)絕(jue)(jue)緣電(dian)(dian)阻(zu)應(ying)不(bu)小于50MQ密封(feng)試(shi)驗后(hou),長期存放(fang)或者使用(yong)后(hou)的絕(jue)(jue)緣電(dian)(dian)阻(zu)應(ying)不(bu)消與MQ工作(zuo)溫度下(xia)的熱態(tai)(tai)絕(jue)(jue)緣電(dian)(dian)阻(zu)應(ying)不(bu)低(di)于公式中的計算值,但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態(tai)(tai)絕(jue)(jue)緣電(dian)(dian)阻(zu)MQ t一-發 熱長度mmT一工作(zuo)溫度°C
5.絕緣(yuan)耐(nai)壓(ya)(ya)強度元件應在(zai)規(gui)定的試(shi)驗(yan)條件和(he)試(shi)驗(yan)電壓(ya)(ya)下保(bao)持(chi)1min,而無閃絡和(he)擊(ji)穿現(xian)象(xiang)
6.經受(shou)通斷電的(de)能力元件應能在規定的(de)試(shi)驗(yan)條(tiao)件下(xia)經歷2000次通斷電試(shi)驗(yan),而不發生損壞